Bobbin cleaning device



Feb. 21, 1956 H- A. WILSON ET AL 2,735,159

BOBBIN CLEANING DEVICE Filed May 5, 1955 2 Sheets-Sheet 1 INVENTORSHARRY A. WILSON ELMER 0. MIX

ATTORNEY \aaa agi H. A. WILSON ET AL BOBBIN CLEANING DEVICE Feb. 21.1956 Filed May 5, 1955 M v m m m mM R N c w E T w A United States PatentBOBBIN CLEANENG DEVICE Harry A. Wilson, South Spencer, and Elmer C.Alix, Charlton City, Mass, assignors to The A & W Machine Company,Charlton City, Mass., a corporation of Massachusetts Application May 5,1955, Serial No. 506,216

4 Claims. (Cl. 2819) This invention relates to improvements in bobbincleaning devices and has particular reference to the provision of adevice for removing waste weft from bobbins which have been ejected fromthe shuttles of a weft replenishing loom.

One of the principal objects of the invention is to provide a simple,eflicient and automatically functioning device for removing waste weftfrom bobbins of weft replenishing looms subsequent to their beingejected from the shuttles and to the replacement thereof with a freshbobbin in the shuttle.

Another object is to provide a bobbin cleaning device of the abovecharacter embodying spaced longitudinal portions having means thereonfor automatically gripping and winding the waste weft thereon andfurther embodying an intermediate reciprocating member for ejecting saidwaste weft from said longitudinal portions.

Another object is to provide a bobbin cleaning device for removing wasteweft from bobbins after having been ejected from the shuttles of weftreplenishing looms whereby the loose ends of the weft, whether coarse orfine, will be more positively and automatically gripped and removed fromthe bobbins and simultaneously be automatically displaced from thedevice whereby it is enabled to function continuously to clean ejectedbobbins without becoming clogged.

Another object is to provide a device of the above character which willfunction in response to an operative part of the loom thereby requiringno additional motion imparting means.

Other objects and advantages of the invention will become apparent fromthe following description taken in conjunction with the accompanyingdrawings in which;

Fig. 1 is a top plan view of the device embodying the invention;

Fig. 2 is a fragmentary end view of the device;

Fig. 3 is a fragmentary plan view of the end portion of the means forejecting the weft from the bobbin cleaning device;

Fig. 4 is an enlarged sectional view taken as on line 44 of Fig. 1 andlooking in the direction indicated by the arrows;

Fig. 5 is an enlarged sectional view taken as on line 5-5 of Fig. 1 andlooking in the direction indicated by the arrows;

Fig. 6 is a continuation of the sectional view of Fig. 5 taken throughthe forward end of the device;

Fig. 7 is a fragmentary sectional view illustrating a modified form ofthe invention; and

Fig. 8 is a fragmentary top plan view of a further modification of theinvention.

Referring more particularly to the drawings wherein like characters ofreference designate like parts throughout the several views, the deviceembodying the invention, as shown in Figs. 1 through 6, comprises a mainsupporting bracket 10 having a bearing 11 secured thereto by a threadedportion 12 threadedly received within a threaded ice opening in thebracket 10. A binding nut 13 rigidly secures the bearing 11 to thebracket 10.

In the bearing 11 there is rotatably mounted a tubular member 14 havinga pulley 15 secured thereto by a set screw or the like 16. The tubularmember 14 has an enlarged portion 17 on the end thereof opposite thepulley 15 which carries a pair of spaced fingers 18 to which long andslender channeled portions 19 are attached by bolts or the like 20.

The channeled members 19 are spaced a considerable distance apartadjacent their ends attached to fingers 18 and taper forwardly andinwardly toward each other, as illustrated in Figs. 5 and 6, and areheld in positive spaced relation with each other by a slide block 21held between said outer ends of the channeled members 19 by a screw orthe like 22. The slide block 21 is fitted within a longitudinal slot 23formed in the outer end of a blade member 24 lying between saidchanneled members 19 and secured at its inner end 25 to the reduced end26 of a rod 27 slidably mounted in the tubular member 14.

The rod 27 has an outer reduced end 28 extending through the innerportion of a roller bearing 29 and secured thereto by a nut 30 attachedto the outer threaded end of the portion 28. The bearing 29 is providedwith diametrically opposed pins 31 which lie within the slotted ends 32of a yoke 33 which straddles said roller bearing 29. Inwardly of theroller bearing 29 and mounted on said rod 27 there is a resilient buffermember 34.

The yoke 33 has an intermediate spacer member 35 which forms the base ofthe yoke and has oppositely extending perforated finger portions 36 and37 which straddle a bearing 38 carried by the bracket 10 and to whichsaid finger portions 36 and 37 are pivotally connected by a bolt or thelike 39. The lower finger 37 has an integral arm 40 extending outwardlythereof adapted to be operatively associated with a moving part of theloom as shown and described in applicants co-pending application, Serial#419,518, filed March 29, 1954. For example, if it is associated withthe lay of the loom it will be moved back and forth about its pivot 39as the said lay swings rearwardly and forwardly during the operation ofthe loom. As the arm 411 is moved forwardly and rearwardly in responseto the movement of the lay of the loom, the rod 27 is reciprocated inthe tubular member 14 and thereby causes the blade 24 to be reciprocatedas will hereinafter be described in detail.

The channeled members 19 are each provided with strips of card or nappercloth 41 which are secured to said channeled members by rivets or thelike 42 extending through bars 43 and the base of said channeled membersat spaced points longitudinally thereof. The card or napper cloth, asshown in Fig. 4, is preferably provided with relatively straight pointedwire portions 44 which extend outwardly beyond the side edge portions 45of the channeled members 19 throughout the major portion of the area ofsaid channeled portions and thereby provide closely related wire-liketooth portions.

The blade 24 along the opposed longitudinal sides thereof is providedwith toothed portions having forwardly and outwardly tapering side walls46 and substantially normally disposed forward end walls 47. The saidtoothed portions extend outwardly beyond the sides of the channeledportions and blend into an outer pointed end 48, see Figs. 1 and 3.

The bearing 11 has a housing portion 49 attached thereto by a reducedthreaded connection 50. The said housing surrounds the inwardly attachedends of the channeled members 19, fingers 18 to which they are attachedand the enlarged portion 17 of the tubular member 14, see Fig. 5.

It has been stated above that the blade 24 is reciprocated as the arm 40is moved forwardly and backwardly about the pivot 39 by the motion ofthe lay of the loom in a manner similar to the devices shown anddescribed in applicants co-pending application Serial #419,518, filedMarch 29, 1954. It being understood, of course, that suitable mechanismsuch as described in said co-pending application is employed forbringing about this result. In this manner the blade 24 is reciprocatedintermediate the channeled members 19 and during this reciprocation theslotted end portion 23 moves forwardly and rearwardly relative to theslide block 21. During the reciprocating action of the blade, it is alsorotated with the channeled members 19 by the pulley 15 which is attachedto a suitable source of power by a belt or the like 52. The rotation ofthe pulley 15 also causes the card or napper cloth 41 carried by saidchanneled members to be rotated.

The device operates as follows:

As the bobbin is ejected from the shuttle, as described in detail inapplicants above-mentioned co-pending application, the loose end of theweft on the bobbin falls over the rotating strips of card or nappercloth and is immediately wound thereon. Simultaneous to the rotation andthe winding of the weft on the card or napper cloth, the notched edgesof blade 24 which is simultaneously being reciprocated will engage theloops of weft wound on the napper cloth and will intermittently andprogressively cause said looped weft to be advanced toward the pointedend 43 and be ejected from the device.

The fact that the ends 44 of the wires are relatively pointed, they willhave a more positive gripping action with the weft to cause the saidWeft to 'wind thereon in a plurality of adjacently related loops. Theoutwardly tapering side portions 46 of the toothed portions of theoscillating blade 24 will cause said toothed portions to sliderearwardly of the loops and upon movement in the opposite direction thenormally related ends 47 will cause the toothed portions to engage theloops and push them toward the pointed end 48 intermittently andprogressively as stated above. The fact that the pointed end 48 movesrearwardly and forwardly of the pointed ends of the channeled memberswill cause the waste weft to be completely ejected from the bobbincleaning device.

In Fig. 7 there is shown a slight modification wherein instead ofattaching the strips of card or napper cloth inwardly of the channeledportions by bars 43, the said napper cloth is secured therein by a layerof adhesive 53 and the wirelike toothed portions will thereby extendthroughout the entire area of the width and length of said channeledportions. In this instance the outer ends of the Wirelike toothedportions 54 are bent sidewise slightly in the direction of the rotationof said napper cloth. This has been found to increase the grippingaction thereof with the weft regardless of whether the weft isrelatively thick or fine in texture.

It is to be understood that card or trapper cloth, such as shown in Fig.7, might also be attached to the channeled members by the bars 43 ifdesired, and likewise the card or napper cloth 41 might also be securedin the channeled portions 19 by adhesive such as shown at 53.

The fact that the respective channeled portions and likewise the card ornapper cloth are tapered outwardly and inwardly toward each otherincreases the function of the toothed portions along the opposed sideedges of the blade 24 to more positively function in ejecting the weftwound on said strips of card or napper cloth.

In Fig. 8 there is shown a slight modification of lever arrangementwherein an'arm 54 similar to the arm 40 is pivotally attached at 55 to alink 56 also pivotally attached at 57 to the bracket 10. The arm 54 hasan angularly disposed threaded portion 58 adjacent its pivotalconnection 55 to the link 56 and to which is threadedly attached amember 59 having an annular portion 60 carried by the outer end thereof.Secured internally of the annular portion 60 is a bearing 61 having anouter ball face rotatably mounted in said annular portion. The bearing61 has a central opening therein through which the reduced threaded end28 of the rod 27 extends and is secured to said bearing 61 by a nut orthe like 62 similar to the nut 30. As the arm 54 is reciprocated backand forth by engagement thereof with the lay of the loom as set forth inapplicants co-pending application mentioned above, the member 59 whichis attached thereto and which responds to the movement of the arm 54will cause the rod 27 to be reciprocated. The link 56 enables the rod 27to be reciprocated in a relatively straight line path of movement andthereby reciprocates the blade 24 simultaneous to the rotation thereof.The reciprocating and rotary motion is imparted to the blade 24 in amanner similar to that set forth in applicants co-pending applicationreferred to above. A

From the foregoing description it will be seen that simple, efficientand economical means have been provided for accomplishing all of theobjects and advantages of the invention. It will be apparent that manychanges may be made in the details of construction and arrangement ofparts shown and described without departing from the spirit of theinvention as expressed in the accompanying claims. Therefore, it is tobe understood that all of the matter set forth as shown in theaccompanying drawings is to be interpreted as illustrative and not in alimiting sense.

Having described our invention we claim:

1. A device for removing waste weft from bobbins comprising relativelylong and narrow strips of material supported in spaced back-to-backrelation with each other and having closely related teethlike membersextending outwardly of the exposed sides thereof, a relatively long andnarrow blade intermediate said long and narrow strips of material havingopposed toothed edges extending outwardly of the opposed sides of saidlong and narrow strips of material, means for rotating said strips ofmaterial and said blade simultaneously as a unit and means for impartinga reciprocating movement to said blade during said rotation.

2. A device for removing waste weft from bobbins comprising rotatablysupported relatively long and narrow strips of material having closelyrelated wirelike tooth portions thereon, said relatively long and narrowstrips being in spaced back-to-back relation with each other and havinga long and narrow bladelike member having opposed toothed edges lyingtherebetween with said toothed edges extending outwardly of the opposedsides of said long and narrow strips, the respective teeth on said edgeseach having forwardly and outwardly tapering portions and substantiallynormally disposed front edges, means for rotating said strips and saidblade simultaneously and means for imparting a simultaneousreciprocating move-. meut of said blade relative to said long and narrowstrips of material.

3. A device of the character described comprising a rotatably supportedtubular member'having long and narrow channeled portions secured theretoin spaced backto-back relation with each other and terminating in outerpointed end portions, relatively long and narrow strips of materialhaving closely related teethlike members socured in said channeledportions, a relatively long and narrow bladclike member slidablysupported intermediate said channeled portions-having opposed toothededges extending throughout the length thereof and outwardly of theopposed sides of the channeled portions andterminating in a pointed endof a size larger than the pointed ends of said channeled members, meansfor imparting a rotary movement to said channeled members and bladelikemember and means for reciprocating said bladelike member,

intermediate said channeled portions by an amount sufiicientto move thepointed end thereof inwardly and outwardly of thepointed ends of thechanneled members.

4. A device for removing waste weft from bobbins comprising a brackethaving a bearing therein, a tubular member rotatabiy supported in saidbearing said tubular member having long and narrow strips of materialhaving closely related teethlike members thereon secured thereto infixed spaced back-to-back relation with each other and being adapted tobe rotated with said tubular member, a rod slidably supported in saidtubular member and having a relatively long and narrow bladelike membersecured thereto and lying between said long and narrow strips ofmaterial having the closely related teethlike members thereon, saidblade having opposed toothed edges extending outwardly of the opposedsides of said long and narrow strips of material and blending into atapered outer end portion, said tapered outer end portion being adaptedto be moved inwardly and outwardly beyond the outer ends of said longand narrow strips of material having the closely related teethlikemembers thereon, means for References Cited in the file of this patentUNITED STATES PATENTS Lonzo Aug. 31, 1937 Clark Dec. 25, 1951

